Home / 1,561.08-2,339.67-1,004.31

Finding the Fourth Proportional to 1,561.08, 2,339.67 and 1,004.31

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Solution

The fourth proportional to 1,561.08, 2,339.67 and 1,004.31 is: 1,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.08 : 2,339.67 = 1,004.31 : x
  2. Step 2: Convert to fraction form
    1,561.08/2,339.67 = 1,004.31/x
  3. Step 3: Cross multiply
    1,561.08x = 2,339.67 × 1,004.31
  4. Step 4: Simplify right side
    1,561.08x = 2,349,757.74
  5. Step 5: Solve for x
    x = 2,349,757.74/1,561.08
  6. Step 6: Final answer
    x = 1,505.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.